fix: 修复漏洞【CITIVD】Deepin-image-viewer-缓冲区溢出

修复漏洞【CITIVD】Deepin-image-viewer-缓冲区溢出 Bug: https://pms.uniontech.com/bug-view-259819.html Log: 修复漏洞【CITIVD】Deepin-image-viewer-缓冲区溢出
linuxdeepin · Jun 17, 2024 · 591a23f · 591a23f
1 parent 2a83b30
commit 591a23f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/libimageviewer/unionimage/unionimage.cpp b/libimageviewer/unionimage/unionimage.cpp
@@ -547,6 +547,10 @@ UNIONIMAGESHARED_EXPORT FIBITMAP *QImge2FIBitMap(QImage img)
  */
 UNIONIMAGESHARED_EXPORT FIBITMAP *readFile2FIBITMAP(const QString &path, int flags FI_DEFAULT(0))
 {
+    QImage image(path);
+    if(image.isNull()) {//判断图片是否有效
+        return nullptr;
+    }
     QByteArray b;
     b.append(path);
     const char *pc = b.data();